(;LB[lc:3][nc:2][rd:4][re:5][qf:1][yy:0]C[White played 5. How should Black
respond?
]
AB[nc][pd][rd]
AW[lc][re][qf][qi]
PB[Black]
PW[White]
KM[0]
(;B[qd]
MN[1]
CR[qd];W[nb]
CR[nb](;B[ob]
CR[ob];W[nd]
CR[nd](;B[oc]
CR[oc];W[of]
C[RIGHT Black gets a solid corner but
White gets a nice position on the
outside.
(There's still a mayor gap at n16 to
aim at for Black so White's position is
not that impressive.)]
CR[of])(;B[mc]
;W[md]
;B[mb]
C[RIGHT Black gets a solid corner but
White gets a nice position on the
outside.]
;W[of]
C[RIGHT Black gets a solid corner but
White gets a nice position on the
outside.
(Although White is stronger than before
Black has more territory and he still
has the cut at m16 to aim at. If White
want to keep the center influence intact
after the cut, he should continue by
pushing along the 5th line giving black
a very nice 3rd line territory.)]
))(;B[mb]
;W[mc]
;B[ob]
;W[nd]
;B[oc]
;W[of]
C[White gets too much influence this
way.
(Black gains a little territory compared
to the 1st variation but there are hardly
any weaknesses left in the White
position. Therefore this is not good.)]
))(;B[qe]
CR[qe];W[rf]
CR[rf]LB[rf:2](;B[pf]
CR[pf];W[pg]
CR[pg](;B[og]
CR[og];W[of]
LB[of:6];B[pe]
LB[pe:7];W[ph]
;B[nf]
C[RIGHT You should note however that
white has a lot of aji in the corner.]
)(;B[of]
C[RIGHT You should note however that
white has a lot of aji in the corner.
Black 5 can be considered to be a little
slack but that's a fairly minor point.]
))(;B[ne]
C[RIGHT You should note however that
white has a lot of aji in the corner.]
CR[ne])))